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OpenCloudOS-Kernel/arch/arm/mach-mx3/pcm037.c

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/*
* Copyright (C) 2008 Sascha Hauer, Pengutronix
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#include <linux/types.h>
#include <linux/init.h>
#include <linux/dma-mapping.h>
#include <linux/platform_device.h>
#include <linux/mtd/physmap.h>
#include <linux/mtd/plat-ram.h>
#include <linux/memory.h>
#include <linux/gpio.h>
#include <linux/smsc911x.h>
#include <linux/interrupt.h>
#include <linux/i2c.h>
#include <linux/i2c/at24.h>
#include <linux/delay.h>
#include <linux/spi/spi.h>
#include <linux/irq.h>
#include <linux/fsl_devices.h>
#include <linux/can/platform/sja1000.h>
#include <media/soc_camera.h>
#include <asm/mach-types.h>
#include <asm/mach/arch.h>
#include <asm/mach/time.h>
#include <asm/mach/map.h>
#include <mach/board-pcm037.h>
#include <mach/common.h>
#include <mach/hardware.h>
#include <mach/i2c.h>
#include <mach/imx-uart.h>
#include <mach/iomux-mx3.h>
#include <mach/ipu.h>
#include <mach/mmc.h>
#include <mach/mx3_camera.h>
#include <mach/mx3fb.h>
#include <mach/mxc_nand.h>
#include "devices.h"
#include "pcm037.h"
static enum pcm037_board_variant pcm037_instance = PCM037_PCM970;
static int __init pcm037_variant_setup(char *str)
{
if (!strcmp("eet", str))
pcm037_instance = PCM037_EET;
else if (strcmp("pcm970", str))
pr_warning("Unknown pcm037 baseboard variant %s\n", str);
return 1;
}
/* Supported values: "pcm970" (default) and "eet" */
__setup("pcm037_variant=", pcm037_variant_setup);
enum pcm037_board_variant pcm037_variant(void)
{
return pcm037_instance;
}
/* UART1 with RTS/CTS handshake signals */
static unsigned int pcm037_uart1_handshake_pins[] = {
MX31_PIN_CTS1__CTS1,
MX31_PIN_RTS1__RTS1,
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
};
/* UART1 without RTS/CTS handshake signals */
static unsigned int pcm037_uart1_pins[] = {
MX31_PIN_TXD1__TXD1,
MX31_PIN_RXD1__RXD1,
};
static unsigned int pcm037_pins[] = {
/* I2C */
MX31_PIN_CSPI2_MOSI__SCL,
MX31_PIN_CSPI2_MISO__SDA,
MX31_PIN_CSPI2_SS2__I2C3_SDA,
MX31_PIN_CSPI2_SCLK__I2C3_SCL,
/* SDHC1 */
MX31_PIN_SD1_DATA3__SD1_DATA3,
MX31_PIN_SD1_DATA2__SD1_DATA2,
MX31_PIN_SD1_DATA1__SD1_DATA1,
MX31_PIN_SD1_DATA0__SD1_DATA0,
MX31_PIN_SD1_CLK__SD1_CLK,
MX31_PIN_SD1_CMD__SD1_CMD,
IOMUX_MODE(MX31_PIN_SCK6, IOMUX_CONFIG_GPIO), /* card detect */
IOMUX_MODE(MX31_PIN_SFS6, IOMUX_CONFIG_GPIO), /* write protect */
/* SPI1 */
MX31_PIN_CSPI1_MOSI__MOSI,
MX31_PIN_CSPI1_MISO__MISO,
MX31_PIN_CSPI1_SCLK__SCLK,
MX31_PIN_CSPI1_SPI_RDY__SPI_RDY,
MX31_PIN_CSPI1_SS0__SS0,
MX31_PIN_CSPI1_SS1__SS1,
MX31_PIN_CSPI1_SS2__SS2,
/* UART2 */
MX31_PIN_TXD2__TXD2,
MX31_PIN_RXD2__RXD2,
MX31_PIN_CTS2__CTS2,
MX31_PIN_RTS2__RTS2,
/* UART3 */
MX31_PIN_CSPI3_MOSI__RXD3,
MX31_PIN_CSPI3_MISO__TXD3,
MX31_PIN_CSPI3_SCLK__RTS3,
MX31_PIN_CSPI3_SPI_RDY__CTS3,
/* LAN9217 irq pin */
IOMUX_MODE(MX31_PIN_GPIO3_1, IOMUX_CONFIG_GPIO),
/* Onewire */
MX31_PIN_BATT_LINE__OWIRE,
/* Framebuffer */
MX31_PIN_LD0__LD0,
MX31_PIN_LD1__LD1,
MX31_PIN_LD2__LD2,
MX31_PIN_LD3__LD3,
MX31_PIN_LD4__LD4,
MX31_PIN_LD5__LD5,
MX31_PIN_LD6__LD6,
MX31_PIN_LD7__LD7,
MX31_PIN_LD8__LD8,
MX31_PIN_LD9__LD9,
MX31_PIN_LD10__LD10,
MX31_PIN_LD11__LD11,
MX31_PIN_LD12__LD12,
MX31_PIN_LD13__LD13,
MX31_PIN_LD14__LD14,
MX31_PIN_LD15__LD15,
MX31_PIN_LD16__LD16,
MX31_PIN_LD17__LD17,
MX31_PIN_VSYNC3__VSYNC3,
MX31_PIN_HSYNC__HSYNC,
MX31_PIN_FPSHIFT__FPSHIFT,
MX31_PIN_DRDY0__DRDY0,
MX31_PIN_D3_REV__D3_REV,
MX31_PIN_CONTRAST__CONTRAST,
MX31_PIN_D3_SPL__D3_SPL,
MX31_PIN_D3_CLS__D3_CLS,
MX31_PIN_LCS0__GPI03_23,
/* CSI */
IOMUX_MODE(MX31_PIN_CSI_D5, IOMUX_CONFIG_GPIO),
MX31_PIN_CSI_D6__CSI_D6,
MX31_PIN_CSI_D7__CSI_D7,
MX31_PIN_CSI_D8__CSI_D8,
MX31_PIN_CSI_D9__CSI_D9,
MX31_PIN_CSI_D10__CSI_D10,
MX31_PIN_CSI_D11__CSI_D11,
MX31_PIN_CSI_D12__CSI_D12,
MX31_PIN_CSI_D13__CSI_D13,
MX31_PIN_CSI_D14__CSI_D14,
MX31_PIN_CSI_D15__CSI_D15,
MX31_PIN_CSI_HSYNC__CSI_HSYNC,
MX31_PIN_CSI_MCLK__CSI_MCLK,
MX31_PIN_CSI_PIXCLK__CSI_PIXCLK,
MX31_PIN_CSI_VSYNC__CSI_VSYNC,
/* GPIO */
IOMUX_MODE(MX31_PIN_ATA_DMACK, IOMUX_CONFIG_GPIO),
};
static struct physmap_flash_data pcm037_flash_data = {
.width = 2,
};
static struct resource pcm037_flash_resource = {
.start = 0xa0000000,
.end = 0xa1ffffff,
.flags = IORESOURCE_MEM,
};
static int usbotg_pins[] = {
MX31_PIN_USBOTG_DATA0__USBOTG_DATA0,
MX31_PIN_USBOTG_DATA1__USBOTG_DATA1,
MX31_PIN_USBOTG_DATA2__USBOTG_DATA2,
MX31_PIN_USBOTG_DATA3__USBOTG_DATA3,
MX31_PIN_USBOTG_DATA4__USBOTG_DATA4,
MX31_PIN_USBOTG_DATA5__USBOTG_DATA5,
MX31_PIN_USBOTG_DATA6__USBOTG_DATA6,
MX31_PIN_USBOTG_DATA7__USBOTG_DATA7,
MX31_PIN_USBOTG_CLK__USBOTG_CLK,
MX31_PIN_USBOTG_DIR__USBOTG_DIR,
MX31_PIN_USBOTG_NXT__USBOTG_NXT,
MX31_PIN_USBOTG_STP__USBOTG_STP,
};
/* USB OTG HS port */
static int __init gpio_usbotg_hs_activate(void)
{
int ret = mxc_iomux_setup_multiple_pins(usbotg_pins,
ARRAY_SIZE(usbotg_pins), "usbotg");
if (ret < 0) {
printk(KERN_ERR "Cannot set up OTG pins\n");
return ret;
}
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA0, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA1, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA2, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA3, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA4, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA5, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA6, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DATA7, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_CLK, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_DIR, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_NXT, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
mxc_iomux_set_pad(MX31_PIN_USBOTG_STP, PAD_CTL_DRV_MAX | PAD_CTL_SRE_FAST);
return 0;
}
/* OTG config */
static struct fsl_usb2_platform_data usb_pdata = {
.operating_mode = FSL_USB2_DR_DEVICE,
.phy_mode = FSL_USB2_PHY_ULPI,
};
static struct platform_device pcm037_flash = {
.name = "physmap-flash",
.id = 0,
.dev = {
.platform_data = &pcm037_flash_data,
},
.resource = &pcm037_flash_resource,
.num_resources = 1,
};
static struct imxuart_platform_data uart_pdata = {
.flags = IMXUART_HAVE_RTSCTS,
};
static struct resource smsc911x_resources[] = {
{
.start = CS1_BASE_ADDR + 0x300,
.end = CS1_BASE_ADDR + 0x300 + SZ_64K - 1,
.flags = IORESOURCE_MEM,
}, {
.start = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
.end = IOMUX_TO_IRQ(MX31_PIN_GPIO3_1),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWLEVEL,
},
};
static struct smsc911x_platform_config smsc911x_info = {
.flags = SMSC911X_USE_32BIT | SMSC911X_FORCE_INTERNAL_PHY |
SMSC911X_SAVE_MAC_ADDRESS,
.irq_polarity = SMSC911X_IRQ_POLARITY_ACTIVE_LOW,
.irq_type = SMSC911X_IRQ_TYPE_OPEN_DRAIN,
.phy_interface = PHY_INTERFACE_MODE_MII,
};
static struct platform_device pcm037_eth = {
.name = "smsc911x",
.id = -1,
.num_resources = ARRAY_SIZE(smsc911x_resources),
.resource = smsc911x_resources,
.dev = {
.platform_data = &smsc911x_info,
},
};
static struct platdata_mtd_ram pcm038_sram_data = {
.bankwidth = 2,
};
static struct resource pcm038_sram_resource = {
.start = CS4_BASE_ADDR,
.end = CS4_BASE_ADDR + 512 * 1024 - 1,
.flags = IORESOURCE_MEM,
};
static struct platform_device pcm037_sram_device = {
.name = "mtd-ram",
.id = 0,
.dev = {
.platform_data = &pcm038_sram_data,
},
.num_resources = 1,
.resource = &pcm038_sram_resource,
};
static struct mxc_nand_platform_data pcm037_nand_board_info = {
.width = 1,
.hw_ecc = 1,
};
static struct imxi2c_platform_data pcm037_i2c_1_data = {
.bitrate = 100000,
};
static struct imxi2c_platform_data pcm037_i2c_2_data = {
.bitrate = 20000,
};
static struct at24_platform_data board_eeprom = {
.byte_len = 4096,
.page_size = 32,
.flags = AT24_FLAG_ADDR16,
};
static int pcm037_camera_power(struct device *dev, int on)
{
/* disable or enable the camera in X7 or X8 PCM970 connector */
gpio_set_value(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), !on);
return 0;
}
static struct i2c_board_info pcm037_i2c_2_devices[] = {
{
I2C_BOARD_INFO("mt9t031", 0x5d),
},
};
static struct soc_camera_link iclink = {
.bus_id = 0, /* Must match with the camera ID */
.power = pcm037_camera_power,
.board_info = &pcm037_i2c_2_devices[0],
.i2c_adapter_id = 2,
.module_name = "mt9t031",
};
static struct i2c_board_info pcm037_i2c_devices[] = {
{
I2C_BOARD_INFO("at24", 0x52), /* E0=0, E1=1, E2=0 */
.platform_data = &board_eeprom,
}, {
I2C_BOARD_INFO("pcf8563", 0x51),
}
};
static struct platform_device pcm037_camera = {
.name = "soc-camera-pdrv",
.id = 0,
.dev = {
.platform_data = &iclink,
},
};
/* Not connected by default */
#ifdef PCM970_SDHC_RW_SWITCH
static int pcm970_sdhc1_get_ro(struct device *dev)
{
return gpio_get_value(IOMUX_TO_GPIO(MX31_PIN_SFS6));
}
#endif
#define SDHC1_GPIO_WP IOMUX_TO_GPIO(MX31_PIN_SFS6)
#define SDHC1_GPIO_DET IOMUX_TO_GPIO(MX31_PIN_SCK6)
static int pcm970_sdhc1_init(struct device *dev, irq_handler_t detect_irq,
void *data)
{
int ret;
ret = gpio_request(SDHC1_GPIO_DET, "sdhc-detect");
if (ret)
return ret;
gpio_direction_input(SDHC1_GPIO_DET);
#ifdef PCM970_SDHC_RW_SWITCH
ret = gpio_request(SDHC1_GPIO_WP, "sdhc-wp");
if (ret)
goto err_gpio_free;
gpio_direction_input(SDHC1_GPIO_WP);
#endif
ret = request_irq(IOMUX_TO_IRQ(MX31_PIN_SCK6), detect_irq,
IRQF_DISABLED | IRQF_TRIGGER_FALLING,
"sdhc-detect", data);
if (ret)
goto err_gpio_free_2;
return 0;
err_gpio_free_2:
#ifdef PCM970_SDHC_RW_SWITCH
gpio_free(SDHC1_GPIO_WP);
err_gpio_free:
#endif
gpio_free(SDHC1_GPIO_DET);
return ret;
}
static void pcm970_sdhc1_exit(struct device *dev, void *data)
{
free_irq(IOMUX_TO_IRQ(MX31_PIN_SCK6), data);
gpio_free(SDHC1_GPIO_DET);
gpio_free(SDHC1_GPIO_WP);
}
static struct imxmmc_platform_data sdhc_pdata = {
#ifdef PCM970_SDHC_RW_SWITCH
.get_ro = pcm970_sdhc1_get_ro,
#endif
.init = pcm970_sdhc1_init,
.exit = pcm970_sdhc1_exit,
};
struct mx3_camera_pdata camera_pdata = {
.dma_dev = &mx3_ipu.dev,
.flags = MX3_CAMERA_DATAWIDTH_8 | MX3_CAMERA_DATAWIDTH_10,
.mclk_10khz = 2000,
};
static int __init pcm037_camera_alloc_dma(const size_t buf_size)
{
dma_addr_t dma_handle;
void *buf;
int dma;
if (buf_size < 2 * 1024 * 1024)
return -EINVAL;
buf = dma_alloc_coherent(NULL, buf_size, &dma_handle, GFP_KERNEL);
if (!buf) {
pr_err("%s: cannot allocate camera buffer-memory\n", __func__);
return -ENOMEM;
}
memset(buf, 0, buf_size);
dma = dma_declare_coherent_memory(&mx3_camera.dev,
dma_handle, dma_handle, buf_size,
DMA_MEMORY_MAP | DMA_MEMORY_EXCLUSIVE);
/* The way we call dma_declare_coherent_memory only a malloc can fail */
return dma & DMA_MEMORY_MAP ? 0 : -ENOMEM;
}
static struct platform_device *devices[] __initdata = {
&pcm037_flash,
&pcm037_sram_device,
&pcm037_camera,
};
static struct ipu_platform_data mx3_ipu_data = {
.irq_base = MXC_IPU_IRQ_START,
};
static const struct fb_videomode fb_modedb[] = {
{
/* 240x320 @ 60 Hz Sharp */
.name = "Sharp-LQ035Q7DH06-QVGA",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 185925,
.left_margin = 9,
.right_margin = 16,
.upper_margin = 7,
.lower_margin = 9,
.hsync_len = 1,
.vsync_len = 1,
.sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_SHARP_MODE |
FB_SYNC_CLK_INVERT | FB_SYNC_CLK_IDLE_EN,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
}, {
/* 240x320 @ 60 Hz */
.name = "TX090",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 38255,
.left_margin = 144,
.right_margin = 0,
.upper_margin = 7,
.lower_margin = 40,
.hsync_len = 96,
.vsync_len = 1,
.sync = FB_SYNC_VERT_HIGH_ACT | FB_SYNC_OE_ACT_HIGH,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
}, {
/* 240x320 @ 60 Hz */
.name = "CMEL-OLED",
.refresh = 60,
.xres = 240,
.yres = 320,
.pixclock = 185925,
.left_margin = 9,
.right_margin = 16,
.upper_margin = 7,
.lower_margin = 9,
.hsync_len = 1,
.vsync_len = 1,
.sync = FB_SYNC_OE_ACT_HIGH | FB_SYNC_CLK_INVERT,
.vmode = FB_VMODE_NONINTERLACED,
.flag = 0,
},
};
static struct mx3fb_platform_data mx3fb_pdata = {
.dma_dev = &mx3_ipu.dev,
.name = "Sharp-LQ035Q7DH06-QVGA",
.mode = fb_modedb,
.num_modes = ARRAY_SIZE(fb_modedb),
};
static struct resource pcm970_sja1000_resources[] = {
{
.start = CS5_BASE_ADDR,
.end = CS5_BASE_ADDR + 0x100 - 1,
.flags = IORESOURCE_MEM,
}, {
.start = IOMUX_TO_IRQ(IOMUX_PIN(48, 105)),
.end = IOMUX_TO_IRQ(IOMUX_PIN(48, 105)),
.flags = IORESOURCE_IRQ | IORESOURCE_IRQ_LOWEDGE,
},
};
struct sja1000_platform_data pcm970_sja1000_platform_data = {
.clock = 16000000 / 2,
.ocr = 0x40 | 0x18,
.cdr = 0x40,
};
static struct platform_device pcm970_sja1000 = {
.name = "sja1000_platform",
.dev = {
.platform_data = &pcm970_sja1000_platform_data,
},
.resource = pcm970_sja1000_resources,
.num_resources = ARRAY_SIZE(pcm970_sja1000_resources),
};
/*
* Board specific initialization.
*/
static void __init mxc_board_init(void)
{
int ret;
mxc_iomux_setup_multiple_pins(pcm037_pins, ARRAY_SIZE(pcm037_pins),
"pcm037");
if (pcm037_variant() == PCM037_EET)
mxc_iomux_setup_multiple_pins(pcm037_uart1_pins,
ARRAY_SIZE(pcm037_uart1_pins), "pcm037_uart1");
else
mxc_iomux_setup_multiple_pins(pcm037_uart1_handshake_pins,
ARRAY_SIZE(pcm037_uart1_handshake_pins),
"pcm037_uart1");
platform_add_devices(devices, ARRAY_SIZE(devices));
mxc_register_device(&mxc_uart_device0, &uart_pdata);
mxc_register_device(&mxc_uart_device1, &uart_pdata);
mxc_register_device(&mxc_uart_device2, &uart_pdata);
mxc_register_device(&mxc_w1_master_device, NULL);
/* LAN9217 IRQ pin */
ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1), "lan9217-irq");
if (ret)
pr_warning("could not get LAN irq gpio\n");
else {
gpio_direction_input(IOMUX_TO_GPIO(MX31_PIN_GPIO3_1));
platform_device_register(&pcm037_eth);
}
/* I2C adapters and devices */
i2c_register_board_info(1, pcm037_i2c_devices,
ARRAY_SIZE(pcm037_i2c_devices));
mxc_register_device(&mxc_i2c_device1, &pcm037_i2c_1_data);
mxc_register_device(&mxc_i2c_device2, &pcm037_i2c_2_data);
mxc_register_device(&mxc_nand_device, &pcm037_nand_board_info);
mxc_register_device(&mxcsdhc_device0, &sdhc_pdata);
mxc_register_device(&mx3_ipu, &mx3_ipu_data);
mxc_register_device(&mx3_fb, &mx3fb_pdata);
if (!gpio_usbotg_hs_activate())
mxc_register_device(&mxc_otg_udc_device, &usb_pdata);
/* CSI */
/* Camera power: default - off */
ret = gpio_request(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), "mt9t031-power");
if (!ret)
gpio_direction_output(IOMUX_TO_GPIO(MX31_PIN_CSI_D5), 1);
else
iclink.power = NULL;
if (!pcm037_camera_alloc_dma(4 * 1024 * 1024))
mxc_register_device(&mx3_camera, &camera_pdata);
platform_device_register(&pcm970_sja1000);
}
static void __init pcm037_timer_init(void)
{
mx31_clocks_init(26000000);
}
struct sys_timer pcm037_timer = {
.init = pcm037_timer_init,
};
MACHINE_START(PCM037, "Phytec Phycore pcm037")
/* Maintainer: Pengutronix */
.phys_io = AIPS1_BASE_ADDR,
.io_pg_offst = ((AIPS1_BASE_ADDR_VIRT) >> 18) & 0xfffc,
.boot_params = PHYS_OFFSET + 0x100,
.map_io = mx31_map_io,
.init_irq = mx31_init_irq,
.init_machine = mxc_board_init,
.timer = &pcm037_timer,
MACHINE_END
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